https://github.com/rust-lang/rust http://git.dreamy.place/mirrors/rust/atom?h=0.11.0 2014-06-23T22:39:29+00:00 2014-06-23T22:39:29+00:00 Patrick Walton pcwalton@mimiga.net 2014-06-14T02:09:12+00:00 urn:sha1:654d6444feafaa7bae17057d8b98823c7556ea14 `for...in`. Closes #14803. If you used a structure literal after one of these keywords, surround it in parentheses. [breaking-change] 2014-02-08T19:59:38+00:00 mr.Shu mr@shu.io 2014-02-06T09:38:08+00:00 urn:sha1:ee3fa68fed13e7b8cde523e4bc73b9a07d082212 Error messages cleaned in librustc/middle Error messages cleaned in libsyntax Error messages cleaned in libsyntax more agressively Error messages cleaned in librustc more aggressively Fixed affected tests Fixed other failing tests Last failing tests fixed 2014-02-05T02:05:13+00:00 Alex Crichton alex@alexcrichton.com 2014-02-03T18:25:12+00:00 urn:sha1:03c28b4ac56dd3688a8d324bb2e7683a351e656b Closes #3192 2013-08-09T16:32:46+00:00 Felix S. Klock II pnkfelix@pnkfx.org 2013-08-05T20:18:29+00:00 urn:sha1:eee044734c55bcdc540e334d6edc8cb7d7a040d7 There are 4 different new tests, to check some different scenarios for what the parse context is at the time of recovery, becasue our compile-fail infrastructure does not appear to handle verifying error-recovery situations. Differentiate between unit-like struct definition item and unit-like struct construction in the error message. ---- More generally, outlines a more generic strategy for parse error recovery: By committing to an expression/statement at set points in the parser, we can then do some look-ahead to catch common mistakes and skip over them. One detail about this strategy is that you want to avoid emitting the "helpful" message unless the input is reasonably close to the case of interest. (E.g. do not warn about a potential unit struct for an input of the form `let hmm = do foo { } { };`) To accomplish this, I added (partial) last_token tracking; used for `commit_stmt` support. The check_for_erroneous_unit_struct_expecting fn returns bool to signal whether it "made progress"; currently unused; this is meant for use to compose several such recovery checks together in a loop.